1. A method for receiving a clock synchronization signal, the method comprising:
determining, by a first communication entity, whether the clock synchronization signal is received from a satellite;
entering, by the first communication entity, a master mode when the clock synchronization signal is received; and
entering a slave mode if the clock synchronization signal is not received,
wherein, if the first communication entity enters the slave mode, the first communication entity searches a second communication entity which operates as the master mode, and
wherein, if the first communication entity enters the master mode, the communication entity provides the clock synchronization signal with a third communication entity which operates as the slave mode.
2. The method of claim 1, wherein entering the slave mode comprises searching the second communication entity providing a clock synchronization signal.
3. The method of claim 2, further comprising selecting, if a plurality of communication entities providing a clock synchronization signal are searched, one of the plurality of the communication entities as the second communication entity.
4. The method of claim 3, wherein the second communication entity is selected based on at least one of M-MAP, number of satellites (#sats), number of slave base stations receiving service currently (#slaves), and signal strength (maxSnr) received from a satellite.
5. The method of claim 4, wherein the at least one of the M-MAP, the number of satellites (#sats), the number of slave base stations receiving service currently (#slaves), and the signal strength (maxSnr) is transmitted from each of the plurality of the communication entities.
6. The method of claim 3, wherein the selecting one of the plurality of the communication entities comprises selecting a communication entity having the smallest number of slave base stations among the plurality of the communication entities as the second communication entity.
7. The method of claim 3, wherein the second communication entity is selected based on scores that are weighted according to number of satellites (#sats), number of slave base stations receiving service currently (#slaves), and signal strength (maxSnr) received from a satellite.
8. The method of claim 1, wherein the determining comprises, if the clock synchronization signal is received, determining whether the received clock synchronization signal fulfills at least one predetermined condition.
9. A first communication entity comprising:
a transceiver configured to transmit and receive a signal; and
a controller configured:
to determine whether a clock synchronization signal is received from a satellite,
to enter a master mode if the clock synchronization signal is received, and
to enter a slave mode if the clock synchronization signal is not received,
wherein, if the first communication entity enters the slave mode, the first communication entity searches a second communication entity which operates as the master mode, and
wherein, if the first communication entity enters the master mode, the first communication entity provides the clock synchronization signal with a third communication entity which operates as the slave mode.
10. The first communication entity of claim 9, wherein the controller is further configured to search the second communication entity providing a clock synchronization signal.
11. The first communication entity of claim 10, wherein if a plurality of communication entities providing a clock synchronization signal are searched, the controller is further configured to select one of the plurality of the communication entities as the second communication entity.
12. The first communication entity of claim 11, wherein the second communication entity is selected based on at least one of M-MAP, number of satellites (#sats), number of slave base stations receiving service currently (#slaves), and signal strength (maxSnr) received from a satellite.
13. The first communication entity of claim 12, wherein the at least one of the M-MAP, the number of satellites (#sats), the number of slave base stations receiving service currently (#slaves), and the signal strength (maxSnr) is transmitted from each of the plurality of the communication entities.
14. The first communication entity of claim 11, wherein the controller is further configured to select a communication entity having the smallest number of slave base stations among the plurality of the communication entities as the second communication entity.
15. The communication entity of claim 11, wherein the second communication entity is selected based on scores that are weighted according to number of satellites (#sats), number of slave base stations receiving service currently (#slaves), and signal strength (maxSnr) received from a satellite.
16. The communication entity of claim 9, wherein the controller is further configured to determine whether the received clock synchronization signal fulfills at least one predetermined condition.
17. The method of claim 8, further comprising entering, if the received clock synchronization signal fulfills the at least one predetermined condition, the master mode.
18. The method of claim 8, further comprising entering, if the received clock synchronization signal unfulfills the at least one predetermined condition, the slave mode.
19. The first communication entity of claim 16, wherein the controller is further configured to enter the master mode if the received clock synchronization signal fulfills the at least one predetermined condition.
20. The first communication entity of claim 16, wherein the controller configured to enter the slave mode if the received clock synchronization signal unfulfills the at least one predetermined condition.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
What is claimed is:
1. An ear covering comprising:
a. an enclosure formed generally in the shape of a human ear and having an opening by which said enclosure may be inserted over the ear;
b. a portion of said enclosure lying adjacent the tragus of the ear having an adhesive thereon for adhering said portion to the tragus of the ear such that an enhanced fluid seal is provided between said enclosure and the tragus; and
c. said opening entirely elasticized to retain said enclosure over the ear and to generally keep foreign materials and fluid out of the ear canal even if said portion having an adhesive thereon loses the ability to adhere to the tragus.
2. The ear covering of claim 1 wherein said portion of said enclosure lying adjacent the tragus of the ear further comprises a flap covering the ear canal and the tragus.
3. The ear covering of claim 1 further comprising said enclosure formed larger than the ear which is to be covered by said enclosure in order to provide insulating space between said enclosure and the ear when said enclosure is inserted over the ear.
4. The ear covering of claim 1 further comprising said enclosure is formed of a material generally permeable to sound such that the enclosure does not substantially impair hearing of a person wearing said enclosure.
5. A method of protecting an ear comprising:
a. enclosing an ear within a membrane having an opening therein by which the membrane is inserted over the ear;
b. providing an adhesive on a portion of said membrane adjacent the tragus of the ear such that said portion of said membrane adheres to the tragus to provide an enhanced seal against fluids and foreign particles entering into the ear canal; and
c. entirely elasticizing said opening to generally retain said membrane over the ear and to keep foreign materials and fluids out of the ear canal even if said portion of said membrane loses the ability to adhere to the tragus.
6. The method of claim 4 further comprising forming said membrane larger than the ear which is to be enclosed within said membrane to provide insulating space between said membrane and the ear when the ear is enclosed within said membrane.
7. The method of claim 4 further comprising forming said membrane from a material generally permeable to sound.